note 82616 added to function.tidyNode-isHtml

This function is no longer defined, running it results in: Call to undefined method tidy::isHtml() Seeing as tidy::isXhtml() is not implemented yet and always returns false, does anyone have any other ideas on how to test whether or not a string is HTML? I'm developing an output filter that runs everything via tidy, obviously for any documents that are not html but are returned as text (.txt files, xml feeds etc) tidy is attempting to fix them, I need these types omitted ---- Server IP: 92.48.74.199 Probable Submitter: 135.196.254.2 ---- Manual Page -- http://www.php.net/manual/en/function.tidyNode-isHtml.php Edit -- https://master.php.net/note/edit/82616 Del: integrated -- https://master.php.net/note/delete/82616/integrated Del: useless -- https://master.php.net/note/delete/82616/useless Del: bad code -- https://master.php.net/note/delete/82616/bad+code Del: spam -- https://master.php.net/note/delete/82616/spam Del: non-english -- https://master.php.net/note/delete/82616/non-english Del: in docs -- https://master.php.net/note/delete/82616/in+docs Del: other reasons-- https://master.php.net/note/delete/82616 Reject -- https://master.php.net/note/reject/82616 Search -- https://master.php.net/manage/user-notes.php